Feeder for movable anvil riveting machines



Allg 14, 1951 l.. A. WARD ErAL FEEDER FOR MOVABLE ANVIL RIVETING MACHINES Original Filed March 6, 1944 Lum Amm atenteci ug. 1:4,

STATES CHIN Company, Jackson, Mich.,

a corporation of Ogial' applcafio Marclf, 1944; Sei-ia'l No.

525,110; -JoWiPtent' N0.-2,4l3,27.0, vdadell De- @einher 124,;.1946.. Divicilediagnd.'e :this application April 26, 1946, Serial No. 665,093

. Iri the formiofihe inveiitir'iillustrated infiner Brehm-hy e. .pis.ton. and.. ycylinder provided with. io

the bottom of the chute 11, it s automatically returned by mechanism, such as disclosed in the aforesaid Hoyt patent, into co-operatng relation with the set 81, carrying with it the upsettable member between the jaws 64.

W'hen the anvil @il is in its extreme right position, the stop 86 has moved away from the leaf spring 83, which in turn, due to its initial set, has moved the selector 19 to the right, moving the nose 18 away from the lowest upsettable member in the chute 11 and permitting the upsettable members to drop down the chute 11 against the stop 80, which has moved across the path of movement of the upsettable members in the chute 11. When the stop 8% again engages the free end of the leaf spring 83 on the return movement of the anvil 60 into co-operating relation with the set 81, the selector 19 is moved toward the left, projecting the nose 18 between the rivet immediately against the stop 80 and the one next to it. rIhe nose 18 thus acts to stop downward movement of all the upsettable members in the chute 11 except the one that was immediately next the stop 80. As the nose 18 moves to the left, the stop 80 also moves to the left and permits the upsettable member which was next to it to slide down the chute 11 into position against the stop 88 and resting on the anvil extension 89 in position to be transferred to the top of the anvil 80 between the jaws 64 the next time the anvil 60 moves to the right.

As an example of a change that may be made, selector 19 disclosed in Figs. l and 2 may be reversed so that an unsettable member is selected from the chute 11 upon the movement of the anvil away from co-operating relation with the set rather than upon the movement of the anvil toward co-operating relation with the set, as is disclosed.

Having thus described our invention, what we desire to secure by Letters Patent and claim is:

1. Means for feeding upsettable members to operative position adjacent a set, comprising in combination, frame structure providing a carrier guide surface and a supporting block for selector mechanism, an inclined chute adapted to hold a supply of upsettable members in tandem arrangement for gravitational motion down said chute, the latter having a bottom discharge opening for the individual upsettable members, a carrier member mounted on said guide surface and adapted to transfer the upsettable members from the chute to the set, selector mechanism movably mounted on said supporting block, said selector mechanism including a stop to limit the downward movement of upsettable members in said chute and a nose, said stop and nose being in fixed relation and movable with respect to said chute, said nose being disposable between an upsettable member engaging said stop and an upsettable member next to it, when said stop and nose are moved with respect to said chute, said stop at the same time moving to permit the upsettable member held by it to gravitate down said chute for discharge through said chute opening onto said carrier member, a stop on said carrier member, a spring element, said spring ele'- ment being connected between said frame structure and said selector mechanism in position to be engaged by said stop on said carrier member, to move the selector mechanism against the action of said spring element to a position in which said nose on the selector mechanism is moved out of the path of movement of an upsettable member down said chute, said spring element being 4 adapted normally to urge the selector mechanism to a position in which said stop on the selector mechanism is disposed in the path of movement cf an upsettable member down said chute.

2. Means for feeding upsettable members to operative position adjacent a set, comprising in combination, frame structure providing a carrier guide surface and a supporting block for selector ,mechanism an inclined chute adapted to hold a supply of upsettable members in tandem arrangement for gravitational motion down said chute, the latter having a bottom discharge opening for-the individual upsettable members, a carrier member mounted on said guide surface and adapted to transfer the upsettable members from the chute to the set, selector mechanism movably mounted on said supporting block, said selector mechanism including a stop to limit the downward movement of upsettable members in said chute and a nose, said stop and nose being in fixed relation and movable laterally with respect to said chute, said nose being disposable between an upsettable member engaging said stop and an upsettable member next to it, when said stop and nose are moved with respect to said chute, said stop at the same time moving to permit the upsettable member held by it to gravitate down said chute for discharge through said chute opening onto said carrier member, a stop on said carrier member, a cantilever leaf spring element, said spring element being fixed at one end to said frame structure and having its free end disposed against said stop on said carrier member, said spring being engaged between its ends in a slot in said selector mechanism, said spring being adapted normally to urge the selector mechanism to a position in which said stop on the selector mechanism is disposed in the path of movement of an upsettable member down said chute.

3. Means for feeding upsettable members to operative position adjacent a set, comprising in combination, frame structure providing a carrier guide surface and a supporting block for selector mechanism, an incilned chute adapted to hold a supply of upsettable members in tandem arrangement for gravitational motion down said chute, the latter having a bottom discharge opening for the individual upsettable members, a carrier member reciprocably mounted On said guide surface and adapted to transfer the upsettable members from the chute to the set, selector mechanism reciprocably mounted on said supporting block, said selector mechanism including a stop to limit the downward movement of upsettable members in said chute and a nose, said stop and nose being in fixed relation and slidable with respect to said chute, said nose being disposable between an upsettable member engaging said stop and an upsettable member next to it, when said stop and nose are moved in one direction with respect to said chute, said stop at the same time moving to permit the upsettable member held by it to gravitate down said chute for discharge through said chute opening onto said carrier member, a stop on said carrier member, a cantilever leaf spring element. said spring element being fixed at one end to said frame structure and having its free end disposed against said stop on said carrier member, said spring being engaged between its ends in a slot in said selector mechanism, said spring being adapted normally to urge the selector mechanism to aV position in whichsaid stop on the selector mechanism is disposedin the path of movementof 'anupsettable 5 member down said chute, said stop on the carrier member controlling the reciprocation of said selector mechanism under the inuence of said spring.

LOYD A, WARD. EBEN D. TAYLOR.

REFERENCES CITED The following references are of record in the le of this patent:

Number 6 lUNITED STATES PATENTS Name Date Draher Dec. 21, 1915 Coombs Mar. 13, 1917 Lynch Oct. 9, 1928 Ortegren Sept. 9, :1941 Ward Oct. 24, 1944 Ward Dec. 24, 1946 

